Pattern mechanism for crochet knitting machines



May 31, 1932. g o jw 1,860,526

- PATTERN MECHANISM FOR CROCHET KNITTiNG MACHINES Filed Oct. 25. 1930 xi: m \J jo [H vwf r I NTORM WWW Patented May 3 l, 1932 UNITED 's 'rA-TES SAMPSON BROADWIN, or :BnooKLYN; NEW YORK time MECHANISM roitonoonnr KNITTING .MAoH InEs App1ication filed October 25,1930; se riaiINo. 4e1,14i.'

I The device, the subject of this invention is intended as a pattern mechanism for crochet knitting machines and has for its special ob jects the provision of peculiarly formed links and more especially a means for retaining the I I pattern pins in the links.

It is desirable that the pins which cause a pattern be reliably retained; but it is also desirable that means be provided so that the pins may ..bequickly removed either in the event ofwear. or when the pattern is to be changed. I 1 I I am aware that other. constructions have been suggested but the construction that I 16 propose herewith has the particularadvantage that the pins are never driven into the link by which they are supported nor are they secured therein in such a way that much time is lostin removing them and another 0 advantage of the invention is that the pins are free to partially rotate during use and therefor the wear will be uniform across'the whole head of the pin.

The following is what I consider the best means of carrying out my invention and the accompanying drawings should be referred.

to for a complete understanding of the speci fication which follows.

In the drawings:

, a pattern chain. 7

' Fig. 2 is a reversed plan view of thelink.

Fig. 3 is a side elevation of a pin. Fig. 4 is a side elevation of a pin taken at right angles tothe view in Fig. 3.

Fig. 5 is a much enlarged-sectional.view, of a singlesocket, and e v I 7V Fig. 6 is a sectionalview of a modified form ofpina I 5 '1 v, Similar reference numerals indicate like parts in all the figures where theyappear.

At 1 I show a'chain link and this, link is provided with the usual lugs 2, 3, 4: and 5 so j that a series of these links may be secured "together. the lugs 2'and 3 fitting on the next successive lugs 4 and 5. It is believed how-,

, ever that this construction is well understood and therefore no further description of it is I required.

The links '1 are usually formedof alumi- Fig. 1 is atop plan view of a single link of num or some other metal and each ,bm--01-- link member is provided witlrafplurality of lugs as shown at 6 and 7 and any number of these lugs may beprovided, but in standard practice each bar is provided with any desirablenumber of 'such'lug's. I

Each lug is centrally drilled toreceivethe pins as shown at 8 and 9 and in Figs. 1 and 2 a pin is shown in eachlug of the bar 1,

- Adjacent to and communicating with the 0 perforation through each lug are'slots and I have indicated two of these slots at 10 and 11.

Referring to Fig. 2 it will-be notedthat the bar isreces'sed under each of the lugs 6+7 and two of these recesses are indicated at 12 5 and 13, although it will be understood that there isa recess under each lug. The slots or grooves 10 and 11 communicate with the re-' cesses and extending across thebar and through the recess in the lu are s )rin members such a: o I

asshown at 14 and 15. These springmembers are U-shaped members, the two arms 16 and 17 being connected by a cross bar 18 and I provide pairsof perforations transversely'of the bar 1 and extending through the recess 13 for the reception .of' the spring members.

These perforations which should be oval J shaped to allow for a free spring operation] are shown at 19 and 20 in Fig. 5 and after passing through the perforations the ends of 30 I the spring members are clinched inward as shown at 21 and 22.

The pinsused with my device are such as are shownoin Figs. 4'and'6. These pins areprovided with a cross pin 23 which'rests 35 on the face of the lugas shown in Fig.1. The

small pin 24; low down or near the end of the pin is intended to pass through the slot 10 and 7 when the pin 8 is revolved through one-half of a complete revolution and in either direcso tion, a spring arm. l6 or 17 is forced outward toallow the pin to pass and thereafter the pin a V 24 rests in the position as shown in Fig. 2.

In'Fig. 6 I show a hollow pin which may be employed to, lighten the whole device.

This pin operates however in the manner above described and the .only change is that it may be tubular. 1

In Fig. 3 I show in dotted lines 25 a washer arrangedin the pin 23. The only purpose loo V of this washer is to prevent wear in the event that the links 1 are made of aluminum or soft metal.

As the spring arms 16 and 17 are closely.

adjacent to the hole through the lug, the pin 8 cannot vibrate loose as it requires aehalf revolution of this pin to free it or to place it in such a position so that the small pin 24 can be withdrawn through the slot 10. It will of course be understood that the pins 8 may be of any desired length and that other modifications may be made within the scope of the appended claim without departing from the principle or sacrificing the advantages of the invention.

Having carefully and fully described my invention, what I claim'and desire to secure by LettersPatent is: A

Ina patterninechanisni for crochet knitting machines, a link bar having a plurality of perforated lugs, each said lug being provided with a slot and a recess in said bar under each said lug, a spring member for each said recess and a pattern pin for each said perforation, said pin having a a cross pin adapted to rest on the face of a lug and a short pin adapted to pass through the slot in each said perforation and to be engaged by the spring inthe adjacent recess.

SAMPSON BROADWIN. 

